Table 1 Participant characteristics and bivariate analysis of the association between OHIP-14 score and independent variables.
Variables | Overall (N = 227) | OHIP score: mean (95%CI) | p-value |
|---|---|---|---|
Age (years), mean (95% CI) | 36.3 (34.3, 38.4) | r = −0.15* | 0.02 |
Sex, n (%) | Â | Â | Â |
    Male | 53 (23.3) | 3.6 (2.3, 4.9) | 0.01 |
    Female | 174 (76.7) | 5.8 (4.9, 6.7) | |
Baseline variables | Â | Â | Â |
   Clinical diagnosis, n (%) |  |  |  |
     Muscle (TMDM) | 70 (30.8) | 4.2 (2.9, 5.5) |  |
     TMJ (TMDJ) | 77 (33.9) | 4.2 (3.0, 5.4) | 0.01 |
      Combined (TMDC) | 80 (36.3) | 7.3 (5.8, 8.9) |  |
   Clinical parameters, mean (95% CI) |  |  |  |
     Maximum unassisted mouth-opening distance (mm) | 46.3 (45.3, 47.2) | r = −0.14* | 0.04 |
     Maximum assisted mouth-opening distance (mm) | 48.6 (47.7, 49.6) | r = −0.15* | 0.03 |
After treatment variables | Â | Â | Â |
   Subjective change in pain compared with baseline, n (%) |  |  | |
     Better | 155 (68.2) | 6.4 (3.4, 13.7) |  |
     Same | 62 (27.3) | 4.3 (2.8, 5.7) | 0.13 |
     Worse | 10 (4.5) | 5.7 (4.5, 6.8) |  |
   Clinical parameters, mean (95% CI) |  |  |  |
     Maximum unassisted mouth opening (mm) | 43.9 (42.9, 44.9) | r = 0.09 | 0.24 |
     Maximum assisted mouth opening (mm) | 47.4 (46.5, 48.3) | r = 0.10 | 0.20 |
   Changes in maximum unassisted mouth opening (mm) | 2.9 (2.2, 3.6) | r = 0.08 | 0.27 |
   Changes in maximum assisted mouth opening (mm) | 1.7 (1.0, 2.3) | r = 0.10 | 0.20 |
   Pain intensity score (0–10) | 1.3 (1.0, 1.6) | r = 0.10 | 0.16 |
Treatment durations, n (%) | Â | Â | Â |
   <6 months | 85 (39.2%) | 5.23 (3.97, 6.51) |  |
   6 months to 1 year | 69 (30.4%) | 4.25 (3.02, 5.47) | 0.09 |
   >1–5 years | 69 (30.4%) | 6.48 (4.80, 8.15) |  |
